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The use of mouth taping in people with asthma: a pilot study examining the effects on end-tidal carbon dioxide

Record type: Article

Objectives: The use of mouth taping, to encourage nose breathing, is currently being recommended by some Buteyko practitioners, but its effects on physiology are unknown. This preliminary study aimed to investigate the effects of mouth taping on end-tidal carbon dioxide (ETCO2). Design: Preliminary study with an experimental single group repeated measures design. Setting: Research laboratory, university campus. Participants: Nine university students and staff with mild stable asthma. Interventions: Physiological data were recorded before and during two experimental breathing conditions: oral breathing and nasal breathing (encouraged by mouth taping), carried out on two separate occasions 5–14 days apart. Between visits, participants familiarised themselves with the mouth taping technique. Outcome measures: Primary outcome was ETCO2. Secondary outcomes were respiratory rate, pulse rate, oxygen saturation and lung function. Results: There was an increase in ETCO2 from baseline during both breathing conditions. The mean ETCO2 for oral breathing was 4.4 kPa versus 4.7 kPa for nasal breathing, with mean difference of 0.3 kPa (95% confidence interval ?0.2 to 0.8 kPa). It was also found that ETCO2 increased more in ‘natural’ oral breathers than ‘natural’ nasal breathers. Conclusions: The results of this pilot study provide data to power a larger study and suggest ETCO2 may be increased in people with asthma during nasal breathing, particularly in those who normally primarily breathe through the mouth. The methodology was found to be acceptable to this sample of people with mild asthma.

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Citation

Bishop, Ajay, Rawle, Michelle and Bruton, Anne (2007) The use of mouth taping in people with asthma: a pilot study examining the effects on end-tidal carbon dioxide Physiotherapy Theory and Practice, 93, (2), pp. 129-136. (doi:10.1016/j.physio.2006.11.010).

More information

Published date: June 2007
Keywords: carbon dioxide, asthma, mouth breathing, respiratory physiology

Identifiers

Local EPrints ID: 54990
URI: http://eprints.soton.ac.uk/id/eprint/54990
ISSN: 0959-3985
PURE UUID: b2b3d9ed-1dd4-49ce-9ad3-8bc2e7223b3d
ORCID for Anne Bruton: ORCID iD orcid.org/0000-0002-4550-2536

Catalogue record

Date deposited: 31 Jul 2008
Last modified: 17 Jul 2017 14:34

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Contributors

Author: Ajay Bishop
Author: Michelle Rawle
Author: Anne Bruton ORCID iD

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